Window-ventilator.



IED STATES PATENT OFFICE.

GERALD c. FIELD AND ABRAM H. ALBERTSON, or SEATTLE-WASHINGTON.

WINDOW-VENTILATOR,

Application filed November 25, 1913.

To aZZ whom it may concern Be it known that we, GERALD C. FIELD andABRAM I-I. ALBERTSON, citizens of the United States, residing atSeattle, in the county of King and State of Washington, have inventedcertain new and useful Improvements in l/Vindow-Ventilators, of whichthe following is a specification.

This invention relates to window-ventilators; and its object is theprovision of a simple and inexpensive device of this character whichwill be convenient to use and efficient in operation.

The invention consists in the novel construction and adaptation ofparts, as will be hereinafter more fully described.

In the accompanying drawings, forming a part of the specification,Figure 1 is a perspective view of a portion of a window showing ourimproved ventilator in operative position therein. Fig. 2 is atransverse vertical section of the same. Fig. 3 is a similar viewillustrating the ventilator in inoperative position.

Referring to the drawings, the reference numeral 5 indicates the lowerrail of a window sash which is vertically movable in ways provided inthe jambs 6 of a window-frame. Stops or strips, such as 7, are securedto said jambs to serve as guides for the ways.

8 is the window-sill with a recess having a sloping surface 9 to affordthe so-called wash and against which the sash is lowered in closing thewindow. As illustrated a ledge-board 10 is provided upon the sill andconstitutes a part of the latter.

The above-mentioned parts are or may be of the usual or suitableconstruction.

According to our invention, we provide a bar 11 of a length to enter thespace between the window-frame stops 7. Said bar is formed with a rabbet12 along one of its edges to provide two faces 13 and 14 arranged insubstantially rectangular relations to fit against the outer and uppersurfaces 15 and 16, respectively, of the sill ledge 10. 17 representshinges secured to the face 14 of the bar and the face 16 of said ledgewhereby the bar may be swung down into the position in which it is shownin Fig. 3 or restored to the position which it occupies in Fig. 2.Diagonally opposite the rabbet 12 the bar is provided with a rabbet 18to receive the corner of the sash-rail 5 when the Specification ofLetters Patent;

Patented Jan. 12, 1915 Serial No. 802,882.

latter is lowered upon the bar when the sameis in its operativeposition, as shown 1n Fig. 2. Alr ducts or slots 19 are provided in thebar and are arranged to incline downwardly from a recess 20 in the innerside of the bar to the outer side 21, as shown. The recess 20 furnishesmeans whereby the fingers of the operator may be introduced below thebar for turning the same up.

To employ the device, the bar is first tilted up into upright position(Fig. 2) and the window-sash moved down thereupon to have its lower rail5 engage the same within the rabbet 18. The air is free to enter a roomthrough the ducts 19 and, by reason of the inclined disposition of theducts, the air is directed upwardly to create currents for efiectiveventilation. To cause the ventilator to become inoperative thewindowsash is first raised from the bar 11 and the latter is swung downupon the window-' to have the lower rail thereof closed against thesill-wash 9, as shown in Fig. 3.

The invention is remarkably efiective as a ventilator, and is readilytransposed from operative position into inoperative position, or viceversa.

What we claim as our invention, is-

1. In a device of the character described an integral bar beingsubstantially rectangue lar in cross section, said bar being ,of suchlength as to extend across a window sill and having its diagonallyopposed edges cut away to form recesses, the upper of which is adaptedto receive the lower edge of a window sash and the lower of which isadapted to receive the edge of a window sill, said bar having openingsformed transversely and diagonally therethrough and means for hingingsaid bar to a window sill, said hinging means being located at thejuncture of the inner wall of a building and the lower cut out portionof said bar.

2. In a device of the character described an integral bar beingsubstantially rectangular in cross section and of such length as toopenings formed transversely and diago- Signed at Seattle, Wash, this17th day of naly therethrough and means for hingingr November, 1913.

sai bar to a window sill, said hin ing means being located at thejuncture oi the inner gggih g g gf Wall of a building and the lower cutout portion of said bar, said bar having a cut out Witnesses:

portion opposite the said sash receiving HORACE BARNES,

portion. E. PETERSON.

flopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. Q.

